Revert "ci: multi platform build"

This reverts commit ef0c6ca.

.github/workflows/registry-build-publish.yaml

@@ -22,18 +22,18 @@ jobs:
 
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v4
+        uses: actions/checkout@v3
 
       - name: Log in to the Container registry
-        uses: docker/#-action@v3
+        uses: docker/#-action@dd4fa0671be5250ee6f50aedf4cb05514abda2c7
         with:
           registry: ${{ env.REGISTRY }}
           username: ${{ github.actor }}
           password: ${{ secrets.GHCR_TOKEN }}
 
       - name: Extract metadata (tags, labels) for Docker
         id: meta
-        uses: docker/metadata-action@v5
+        uses: docker/metadata-action@e5622373a38e60fb6d795a4421e56882f2d7a681
         with:
           images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
           flavor: |
@@ -42,11 +42,10 @@ jobs:
             suffix=
 
       - name: Build and push Docker image
-        uses: docker/build-push-action@v6
+        uses: docker/build-push-action@7f9d37fa544684fb73bfe4835ed7214c255ce02b
         with:
           context: .
           target: production
           push: true
-          platforms: linux/amd64,linux/arm64
           tags: ${{ steps.meta.outputs.tags }}
           labels: ${{ steps.meta.outputs.labels }}